座村清市 さむらせいいち Seichi Samura

Sword Bearer Assassination Arc

He is a contractor of the enchanted blade “Tobimune,” which he once wielded.
He is a blind swordsman and master of Iai White Purity style, an ultra-fast iaido technique. Kunishige declared him “fastest swordsman known to man.”
Reacting to sound or movement, he can instantly cleave enemies in two.